Island



(No Model.)

' J. W. FOSTER. STOP MOTION FOR SPGOLING MACHINES. No. 335,572.

Patented Feb. 9-, 1886.

INVENTDR:

FIE. E.

N. PETERS. Phom-Lllho m lmr. WnshnlglulL D. c.

NITED STATES ATENT OFFICE.

JOHN \V. FOSTER, OF CENTRAL FALLS, ASSIGNOR TO HIMSELF AND JOHN T. XVILLMARTH, OF PAVTUCKET, RHODE ISLAND.

STOP-MOTION FOR SPOOLlNG-MACHINES.

'To aZZ whom it may concern.-

Be it known that 1, JOHN W. FOSTER, of Central Falls, in the county of Providence, in the State of Rhode Island, have invented an Improvement in Stop-Motions for Spooling- 'Maehines, of which the following is a specification.

The nature of my invention consists in the combination ofa vertically-movable revolving spindle with means for stopping the revolving movement of the spool upon the falling movement of the spindle, means for holding the spindle in engagement with the spool for the purpose of rotating the same, and means for causing the downward movement of the spindle and consequent stoppage of thespool upon the breaking of a single thread, as hereinafter set forth.

ism when in its locked position, the dropwires being omitted. Fig. 3 represents avertical section of the lock-concealing box, taken inthe line of the drop-wire hooks, showing a front elevation of the locking mechanism in its disengaging position. Fig. 4 is a detail plan view illustrating the relative position of the several parts.

In the accompanying drawings, A is the step-rail of the spooler; B, the bolster-rail, and O the spindle, which is held at its lower end in an elongated step, D, which below the exterior shoulder, s, loosely fits the perforation c in the step-rail A. The upper portion of the spindle is provided with an attached disk or frictional spool-carrier, E, adapted to impart rotary movement to the spool F, which is loosely held upon the stem r of the spindle. Above the bolster-rail B, and extending longitudinally of the machine, isplaced the spoolrest rail G, provided with circular perforations b, of slightly larger diameter than that of the disk or spool-carrier E, and around the upper edge of the perforations b are inserted the rubber friction-plugs c c c, which serve to Serial No. 163,074.

PECIFICATION forming part of Letters Patent No. 335,572, dated February 9,1886.

Application filed April 22, 1885.

(No model.)

stop the rotary movement of the spool upon the instant ofthe breaking ofany one ofthe several threads which are being wound thereon.

The elongated stepDis provided atits front side with a perforation, d, adapted to receive the end of the short arm X of the bell-crank lever H, which is pivoted to a bar, I, said bar being made to extend the whole length of the machine.

The spindle C is rotated by means of the band e and the attached whirl f, and an out ward movement of the upright arm of the bell-crank lever H will cause the step D and spindle O to be correspondingly raised until the spool-carrier E strikes against the lower head of thespool, and thereafter, upon the continued oitward movement of the bell-crank lever H, and the consequent further elevation of the spindle, the spool F will be raised from its seat upon the rubber friction-plugs 0, and will then partake of the rotary movement of the spindles and spool-carrier.

To the upper end of the bell-crank lever l I isjointed the bar J, which extends through the upper portion of the boxK andterminates in a knob, g, the bar J being made capable of a limited outward movement, which serves to impart a corresponding outward movement to the upper end of the bell-crank lever, and a consequent upward movement to the spindle. To the under side of the bar J is secured the catch-pin h, which by proper engagement with the vertically-moving bolt L of the locking mechanism will serve to hold the spindle at its proper elevation for rotating the spool in order to wind the thread thereon. The bolt L is pivoted to the upper side of the tilting pan M, which is supported by means of the pivot-wires loosely held within corresponding perforations in the hanger N, which is secured to. the under side of the cover j of the box K. The hanger N is provided with a cross-bar, 7t, having a perforation, 1, adapted to guide the upper end of the bolt L, which is so pivoted to the pan M at such a point relatively to the pivot-wires that a rising or falling movement imparted to the outer end of the pan M will cause the corresponding upward and downward movement of the bolt L, but in a diminished degree. The upper end of the bolt L is beveled, so that upon draw- ICO ing back the bar J the catch-pin it will be antomatically caught and held by the bolt.

. The pan M may be made of light sheet metal, the outer edge, m, being turned upward in order to adapt the same for the impact of the drop-wires n n n, which are suitably held from displacement by means of a perforated plate, T, secured to the under side of a bar, 0, which is attached to the under side of the cover j of the boX K. The dropwires n n n pass through the perforations 0 0 0 in the cover j, and also through the perforationspp p and ppp' in the plate T, the upper end of the wire n being made in hook form, so as to hold the thread, and the lower end of the wire being turned first horizontally and then vertically, so as to pass loosely through the perforations in the plate T, in order that upon the breaking of one of the threads q the drop-wire pertaining to that thread will fall freely to the upwardly-turned edge of the pan M.

The pan M is balanced by means of the weight t, so that when free it will rise to ahorizontal position against the lower end of the stopwire u, which extends downward from the cover j, and when the pan M is in its elevated position the bolt L will be in proper position to engage with the catchpin h upon the outward movement of the bar J, and to retain the same in its outward posit-ion until released by the falling of one of the drop-wires n,which will cause the downward movement of the pan and bolt, and upon the release of the catchpin h by the falling vof the drop wire the spindle 0 will immediately drop into the position shown in Fig. 1, and thus resultin the instant stoppage of the movement of the spool by reason of its contact with the friction-plugs c.

The several threads q to be wound upon the spool F pass from their respective cops upward over the friction-bar P, thence through the hooks of the drop-wires n, thence upward over an elevated roll, Q, supported above the box K, thence through the eye V on the wavemotion bar R, and to the spool F,upon which the several threads are to be wound with uniformity.

The horizontal portion w of the wire staple S,which is secured to the cover j, serves as a stop to the continued downward movement of the pan M upon the falling thereon of a dropwire a.

It will of course be understood that a fixed support other than the continuous rail G may be employed to form a checking-rest for the spool upon the downward movement of the spindle, and in that case separate rests for each spool may be attached to the bolster-rail; and other means than that of the plugs a may be employed for suddenly checking the revolving movement of the spool when in contact with its rest.

I claim as my invention- 1. The combination of the vertically-movable spindle provided with a spool-holding carrier adapted to impart a rotary movement to the spool upon the proper elevation of the spindle, and the stationary spool-rest adapted to cause the stopping of the rotary movement of the spool upon the proper depression of the spindle at the breaking of a thread, and means for raising the spindle and spool-holding car rier, whereby the spool will be taken from its rest and set in revolution, substantially as described.

2. The combination of the stationary spoolrest,vertically-movable spindle provided with a spool-holding carrier, locking mechanism adapted to hold the spindle and its spool-ho1ding carrier at their highest position, and dropwires adapted to trip the locking mechanism upon the breaking of a thread, and to cause the fall of the spindle and its spool-holding carrier, substantially as described.

3. The combination of the stationary spoolrest,vertically-movable spindle provided with a spoolholding carrier,movable spindle-step, bell-crank lever engaging with the step, the arm pivoted to the bell-crank lever and provided with a catch, the locking-bolt, tilting pan, stop for the same, and the drop-wires, all arranged and operating substantially as described. 7

JOHN \V. FOSTER. lVitnesses:

JOHN S. -LYNOH, SOCRATES SOHOLFIELD. 

